Cardinal Heating & Cooling
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Broken air conditioner or heater? Contact Cardinal Heating & Cooling right away! Our family owned and operated Sterling heating and air conditioning repair company responds promptly to all service calls. We know the inconvenience of having an ineffective heating or air conditioning system when you need it most.

That's why we are here to provide you with the timely and efficient services you deserve. Whether your comfort equipment is down to its last legs or just needs a little tune-up, our professional team can handle it. We are NATE-certified and licensed in the state of Virginia. We also offer flat-rate pricing, free estimates on system installations, and financing options through Wells Fargo.

As your one-stop shop for all things HVAC, we always put your comfort and satisfaction as our top priorities. Get your heater or AC back up and running in no time with Cardinal Heating & Cooling in Sterling! Cardinal Heating & Cooling was established in 1991 by HVAC industry veteran, Nelson Workman.
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As one of the most trusted HVAC service companies in all of Sterling including Fairfax and Loudoun Counties, Cardinal Heating & Cooling can solve all your indoor comfort needs. Whether it's for your home or place of business, our family owned and operated company offers a wide range of heating, cooling, and indoor air quality services to keep you comfortable and satisfied.
Backed by more than 34 years of industry experience, Cardinal Heating & Cooling is proud to be the most trusted home service company throughout Fairfax County and Loudoun County. Whether your air conditioner is not keeping you cool and comfy or your heater is ready to retire, our NATE-certified and equipped technicians are here to help.
At Cardinal Heating & Cooling, we know how confusing it can get when there's something wrong with your air conditioning or heating system. Whether you need answers about the current HVAC issue you're dealing with or about our company, we recommend that you start by reading our FAQ page. We've put together the answers to some of the most common questions we get from past customers to help you.
There's no controlling the weather outside. As temperatures switch between blazing hot and freezing cold, aren't you glad that you have heating and cooling systems to keep you comfortable indoors? However, like any other mechanical equipment, there are many things that can go wrong with your HVAC system.
Whether your AC has stopped cooling your house properly or you are interested in installing a brand new air conditioner, Cardinal Heating & Cooling can help. Your family should never have to remain warm or uncomfortable during summer. Our team understands that having a working AC is essential and when yours fails, we work quickly to fix it.
Reviews (9)
Rachel Sparks
Rachel Sparks
Sep 02, 2021
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Positive: Professionalism, Punctuality, Responsiveness
Ac broke, they came out within 30 minutes of calling them. Very $$ but great service
Service: Ductless heating and AC services
Jerry Madden
Jerry Madden
Jul 27, 2021
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On a 96 degree day when our AC system was spilling water onto the basement floor, Cardinal was there within a few hours, then diagnosed and fixed the problem. Honest and reasonably priced!
Service: AC repair
Laura Glean
Laura Glean
Jun 27, 2021
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I highly recommend Cardinal Heating and Cooling! I called about a noisy duct, the office staff was extremely polite and helpful. She made an appointment for the next day to get an estimate to fix the issue. Todd arrived as scheduled and was professional, courteous and knowledgeable. He thoroughly evaluated the noisy duct and was able to identify and correct the problem. And he only charged a small service fee. I will definitely use Cardinal for all my heating and cooling issues from now on!
Walt Nagurny
Walt Nagurny
Apr 04, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
For the past twenty years, Cardinal has provided us with superior, expert, prompt, and friendly service. Everyone at Cardinal is always patient, understanding, and polite. In sum: Consistently great work, quality products, and fair prices.
Services: AC maintenance, AC repair, Cleaning, Installation, HVAC repair
Jimmy Hoyt
Jimmy Hoyt
Sep 22, 2020
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Called Cardinal Plumbing for a quote after I had called a couple other companies and they blew those out of the water. Got a new Trane Furnace and a new 75 gallon State Water Heater that sync perfectly with our State A/C unit for a great price. They came 2 days later promptly at the scheduled time and were out in 4 hours. They checked to make sure everything was installed correctly and tested the systems and showed me how to use them and what I should look for in the future. I am extremely satisfied with the furnace and water heater but even more so with Cardinals professionalism, promptness, and
Marcos Ponce
Marcos Ponce
Sep 22, 2020
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Positive: Professionalism, Punctuality, Responsiveness, Value
A friend suggested this company to us after our A/C malfunctioned recently. Thank you Cardinal Heating and Cooling for squeezing us in! The Scheduler was personable and empathetic. The Techs were professional, responsive to questions, and moved with purpose.
Pam Malik
Pam Malik
Jul 27, 2020
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This was the first time I called for their services, I was very impressed with the punctuality, very reasonable rates a very keen professional approach to the customer and best of all no diagnostic fee or simple plain English estimate fee , to me it is does not make sense, no work has been done why am I paying..
Thank you Todd for the great job performed, you will be recommended to my multiple connections..
Va Duck
Va Duck
May 05, 2020
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I've recently had my ailing air conditioning system serviced by Cardinal Heating and Cooling. An 8-yo  "builder's special" air conditioner leaked its coolant at the coils in the air handler. The cardinal technician was able to contact the manufacturer and recover a good deal of prorated warranty for me. Repairs were done very quickly, very well, and very professionally. Coordination with the office at Cardinal was very easy and pleasant and scheduling was done quickly and efficiently. And, during this awkward time of "social distancing" the technicians came gloved, masked, and booted in a first
Carissa Dear
Carissa Dear
Dec 01, 2019
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Only company I will ever use! Tod is knowledgeable, thorough, and patient...answered all of my questions and explained everything in detail. quick response, arrived on time, and didn't rush through the process.affordable and worth every penny. so nice to know I have someone to call that I can trust! Highly recommend!!!